[wip/parametric-curvers] Fix depend.mk

Compile both on xenial and trusty.

Fix headers problems (>>).
Fix python installation process.

Fix exception throw
Fix wrong string access

Add dependency to talos-pal-hardware-interfaces

Remove debugging information

Add PID control laws when switching to the SOT.

Make the package compiles on trusty and xenial.

Fix for compiling on xenial and trusty.
Detect xenial and add c++-11

Fix exponential decrease when using derivative
Change output signal from swith entity from SignalTimeDependant to Signal
Fix Jacobian computation in Feature6D

Fix template syntax problem >>

Update to pinocchio 1.2.6
Fix warning when compiling with 16.04 LTS.

To trigger a new build, now that the tarball is in place

Changes since 2.6.6:

* Makes the code possible for gazebo 2.2 and gazebo 7
  (this fixes build on 16.04)

Reflects changes in pinocchio

The unit tests have been removed from the Makefile to decrease the compilation time.

Fix bug in CoM computation, task weight computation.

doxygem seems to generate unconsistent file names which fails the installation
process.

Build the binary package
Fix a bug related to the python bindings.